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Patent US4478341A successfully refreshed from Google Patents.
US4478341A
Expired / Lapsed
US
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Tamper-resistant container
Assignee: Individual
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Filing: 1983-08-08
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Granted: 1984-10-23
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Expires: 2003-08-08
Abstract
Abstract A tamper-resistant double walled container with an access system requiring the removal of a portion of the outer wall, the removal of tamper indicating material, such as cotton, the opening of a shutter, and the removal of a portion of the inner wall.
Inventors
- 👤 Avvari Rangaswamy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:40
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; Y; Y10; Y10S; Y10S206/00; Y10S206/807; Y10S220/00; Y10S220/34; Y10S428/00; Y10S428/916
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
225 words
An access system for a tamper-proof package comprising: a double walled container, with both the inner and outer walls of said double walled container being continuous subsequent to the filling of said container; a port for filling said container, which port is permanently sealed subsequent to the filling; a layer of compliant tamper-indicating material filling the volume between said inner and outer walls, an outer access wall section located on said outer wall, the area of said outer access wall section being defined by means permitting reduced resistance to removal of said outer access wall section from said outer wall; a shutter mounted in a grooved track between said outer wall and said inner wall, said shutter further being located between said outer access wall section and said inner wall with a layer of said compliant tamper-indicating material between said shutter and said outer access wall section and a layer of said compliant tamper-indicating material between said shutter and said inner wall, said shutter being moveable in said groove track so as to be removed from the area between said outer access wall section and said inner wall; an inner access wall section located on said inner wall, the area of said inner access wall section being defined by means permitting reduced resistance to removal of said inner access wall section from said inner wall.
Claim 2
Dependent Claim
225 words
An access system for a tamper-proof package comprising: a double walled container, with both the inner and outer walls of said double walled container being continuous subsequent to the filling of said container; a port for filling said container, which port is permanently sealed subsequent to the filling; a layer of compliant tamper-indicating material filling the volume between said inner and outer walls, an outer access wall section located on said outer wall, the area of said outer access wall section being defined by means permitting reduced resistance to removal of said outer access wall section from said outer wall; a shutter mounted in a grooved track between said outer wall and said inner wall, said shutter further being located between said outer access wall section and said inner wall with a layer of said compliant tamper-indicating material between said shutter and said outer access wall section and a layer of said compliant tamper-indicating material between said shutter and said inner wall, said shutter being moveable in said groove track so as to be removed from the area between said outer access wall section and said inner wall; an inner access wall section located on said inner wall, the area of said inner access wall section being defined by means permitting reduced resistance to removal of said inner access wall section from said inner wall.
Claim 3
Dependent Claim
22 words
An access system as set forth in claim 1 in which said inner wall and said outer wall are composed of plastic.
Claim 4
Dependent Claim
22 words
An access system as set forth in claim 1 in which said inner wall and said outer wall are composed of metal.
Claim 5
Dependent Claim
68 words
An access system as set forth in claim 1 in which the means permitting reduced resistance to removal of said outer access wall section and said inner access wall section consists of a scoring of said outer wall and said inner wall about the areas of said outer access wall section and said inner access wall section to facilitate tearing of said outer wall and said inner wall.
Claim 6
Dependent Claim
63 words
An access system as set forth in claim 1 in which said shutter is retained in its initial down position prior to opening by attachment to a stub affixed to said outer wall; and, release of said shutter for movement to the up position is accomplished by tearing along a scored or weakened portion of the attachment of said shutter to said stub.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |